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-rw-r--r--drivers/acpi/dispatcher/dsfield.c1
-rw-r--r--drivers/acpi/dispatcher/dsmethod.c5
-rw-r--r--drivers/acpi/dispatcher/dsmthdat.c1
-rw-r--r--drivers/acpi/dispatcher/dsobject.c6
-rw-r--r--drivers/acpi/dispatcher/dsopcode.c4
-rw-r--r--drivers/acpi/dispatcher/dsutils.c7
-rw-r--r--drivers/acpi/dispatcher/dswexec.c3
-rw-r--r--drivers/acpi/dispatcher/dswload.c9
-rw-r--r--drivers/acpi/dispatcher/dswscope.c2
-rw-r--r--drivers/acpi/dispatcher/dswstate.c5
10 files changed, 42 insertions, 1 deletions
diff --git a/drivers/acpi/dispatcher/dsfield.c b/drivers/acpi/dispatcher/dsfield.c
index 76bc0463f6de..3d33bcc98678 100644
--- a/drivers/acpi/dispatcher/dsfield.c
+++ b/drivers/acpi/dispatcher/dsfield.c
@@ -425,6 +425,7 @@ acpi_ds_init_field_objects(union acpi_parse_object *op,
* Walk the list of entries in the field_list
*/
while (arg) {
+
/* Ignore OFFSET and ACCESSAS terms here */
if (arg->common.aml_opcode == AML_INT_NAMEDFIELD_OP) {
diff --git a/drivers/acpi/dispatcher/dsmethod.c b/drivers/acpi/dispatcher/dsmethod.c
index c475546535b6..238916ce5412 100644
--- a/drivers/acpi/dispatcher/dsmethod.c
+++ b/drivers/acpi/dispatcher/dsmethod.c
@@ -81,6 +81,7 @@ acpi_ds_method_error(acpi_status status, struct acpi_walk_state *walk_state)
/* Invoke the global exception handler */
if (acpi_gbl_exception_handler) {
+
/* Exit the interpreter, allow handler to execute methods */
acpi_ex_exit_interpreter();
@@ -100,6 +101,7 @@ acpi_ds_method_error(acpi_status status, struct acpi_walk_state *walk_state)
}
#ifdef ACPI_DISASSEMBLER
if (ACPI_FAILURE(status)) {
+
/* Display method locals/args if disassembler is present */
acpi_dm_dump_method_info(status, walk_state, walk_state->op);
@@ -249,6 +251,7 @@ acpi_ds_call_control_method(struct acpi_thread_state *thread,
}
if (!(obj_desc->method.method_flags & AML_METHOD_INTERNAL_ONLY)) {
+
/* 1) Parse: Create a new walk state for the preempting walk */
next_walk_state =
@@ -378,9 +381,11 @@ acpi_ds_restart_control_method(struct acpi_walk_state *walk_state,
/* Did the called method return a value? */
if (return_desc) {
+
/* Are we actually going to use the return value? */
if (walk_state->return_used) {
+
/* Save the return value from the previous method */
status = acpi_ds_result_push(return_desc, walk_state);
diff --git a/drivers/acpi/dispatcher/dsmthdat.c b/drivers/acpi/dispatcher/dsmthdat.c
index c025674f938b..f7cb5170aa11 100644
--- a/drivers/acpi/dispatcher/dsmthdat.c
+++ b/drivers/acpi/dispatcher/dsmthdat.c
@@ -701,6 +701,7 @@ acpi_ds_method_data_get_type(u16 opcode,
object = acpi_ns_get_attached_object(node);
if (!object) {
+
/* Uninitialized local/arg, return TYPE_ANY */
return_VALUE(ACPI_TYPE_ANY);
diff --git a/drivers/acpi/dispatcher/dsobject.c b/drivers/acpi/dispatcher/dsobject.c
index 8b21f0f9e517..1f2d0c6ef36c 100644
--- a/drivers/acpi/dispatcher/dsobject.c
+++ b/drivers/acpi/dispatcher/dsobject.c
@@ -103,6 +103,7 @@ acpi_ds_build_internal_object(struct acpi_walk_state *walk_state,
common.
node)));
if (ACPI_FAILURE(status)) {
+
/* Check if we are resolving a named reference within a package */
if ((status == AE_NOT_FOUND)
@@ -195,6 +196,7 @@ acpi_ds_build_internal_buffer_obj(struct acpi_walk_state *walk_state,
*/
obj_desc = *obj_desc_ptr;
if (!obj_desc) {
+
/* Create a new buffer object */
obj_desc = acpi_ut_create_internal_object(ACPI_TYPE_BUFFER);
@@ -355,6 +357,7 @@ acpi_ds_build_internal_package_obj(struct acpi_walk_state *walk_state,
arg = arg->common.next;
for (i = 0; arg; i++) {
if (arg->common.aml_opcode == AML_INT_RETURN_VALUE_OP) {
+
/* Object (package or buffer) is already built */
obj_desc->package.elements[i] =
@@ -408,6 +411,7 @@ acpi_ds_create_node(struct acpi_walk_state *walk_state,
}
if (!op->common.value.arg) {
+
/* No arguments, there is nothing to do */
return_ACPI_STATUS(AE_OK);
@@ -469,6 +473,7 @@ acpi_ds_init_object_from_op(struct acpi_walk_state *walk_state,
obj_desc = *ret_obj_desc;
op_info = acpi_ps_get_opcode_info(opcode);
if (op_info->class == AML_CLASS_UNKNOWN) {
+
/* Unknown opcode */
return_ACPI_STATUS(AE_TYPE);
@@ -626,6 +631,7 @@ acpi_ds_init_object_from_op(struct acpi_walk_state *walk_state,
default: /* Other literals, etc.. */
if (op->common.aml_opcode == AML_INT_NAMEPATH_OP) {
+
/* Node was saved in Op */
obj_desc->reference.node = op->common.node;
diff --git a/drivers/acpi/dispatcher/dsopcode.c b/drivers/acpi/dispatcher/dsopcode.c
index 6229c10674e1..8a690a9963f2 100644
--- a/drivers/acpi/dispatcher/dsopcode.c
+++ b/drivers/acpi/dispatcher/dsopcode.c
@@ -640,6 +640,7 @@ acpi_ds_eval_buffer_field_operands(struct acpi_walk_state *walk_state,
/* Initialize the Buffer Field */
if (op->common.aml_opcode == AML_CREATE_FIELD_OP) {
+
/* NOTE: Slightly different operands for this opcode */
status =
@@ -984,6 +985,7 @@ acpi_ds_exec_end_control_op(struct acpi_walk_state * walk_state,
ACPI_DEBUG_PRINT((ACPI_DB_DISPATCH, "[WHILE_OP] Op=%p\n", op));
if (walk_state->control_state->common.value) {
+
/* Predicate was true, go back and evaluate it again! */
status = AE_CTRL_PENDING;
@@ -1014,6 +1016,7 @@ acpi_ds_exec_end_control_op(struct acpi_walk_state * walk_state,
* has been bubbled up the tree
*/
if (op->common.value.arg) {
+
/* Since we have a real Return(), delete any implicit return */
acpi_ds_clear_implicit_return(walk_state);
@@ -1047,6 +1050,7 @@ acpi_ds_exec_end_control_op(struct acpi_walk_state * walk_state,
walk_state->return_desc = walk_state->operands[0];
} else if ((walk_state->results) &&
(walk_state->results->results.num_results > 0)) {
+
/* Since we have a real Return(), delete any implicit return */
acpi_ds_clear_implicit_return(walk_state);
diff --git a/drivers/acpi/dispatcher/dsutils.c b/drivers/acpi/dispatcher/dsutils.c
index 53356a591ac1..3fbe17ebef5a 100644
--- a/drivers/acpi/dispatcher/dsutils.c
+++ b/drivers/acpi/dispatcher/dsutils.c
@@ -202,6 +202,7 @@ acpi_ds_is_result_used(union acpi_parse_object * op,
*/
if ((!op->common.parent) ||
(op->common.parent->common.aml_opcode == AML_SCOPE_OP)) {
+
/* No parent, the return value cannot possibly be used */
ACPI_DEBUG_PRINT((ACPI_DB_DISPATCH,
@@ -352,6 +353,7 @@ acpi_ds_delete_result_if_not_used(union acpi_parse_object *op,
}
if (!acpi_ds_is_result_used(op, walk_state)) {
+
/* Must pop the result stack (obj_desc should be equal to result_obj) */
status = acpi_ds_result_pop(&obj_desc, walk_state);
@@ -498,7 +500,9 @@ acpi_ds_create_operand(struct acpi_walk_state *walk_state,
*/
if ((walk_state->deferred_node) &&
(walk_state->deferred_node->type == ACPI_TYPE_BUFFER_FIELD)
- && (arg_index != 0)) {
+ && (arg_index ==
+ (u32) ((walk_state->opcode ==
+ AML_CREATE_FIELD_OP) ? 3 : 2))) {
obj_desc =
ACPI_CAST_PTR(union acpi_operand_object,
walk_state->deferred_node);
@@ -521,6 +525,7 @@ acpi_ds_create_operand(struct acpi_walk_state *walk_state,
&& (parent_op->common.aml_opcode != AML_REGION_OP)
&& (parent_op->common.aml_opcode !=
AML_INT_NAMEPATH_OP)) {
+
/* Enter name into namespace if not found */
interpreter_mode = ACPI_IMODE_LOAD_PASS2;
diff --git a/drivers/acpi/dispatcher/dswexec.c b/drivers/acpi/dispatcher/dswexec.c
index f1af655ff113..198949f41048 100644
--- a/drivers/acpi/dispatcher/dswexec.c
+++ b/drivers/acpi/dispatcher/dswexec.c
@@ -409,6 +409,7 @@ acpi_status acpi_ds_exec_end_op(struct acpi_walk_state *walk_state)
* being the object_type and size_of operators.
*/
if (!(walk_state->op_info->flags & AML_NO_OPERAND_RESOLVE)) {
+
/* Resolve all operands */
status = acpi_ex_resolve_operands(walk_state->opcode,
@@ -548,6 +549,7 @@ acpi_status acpi_ds_exec_end_op(struct acpi_walk_state *walk_state)
*/
status = acpi_ds_resolve_operands(walk_state);
if (ACPI_FAILURE(status)) {
+
/* On error, clear all resolved operands */
acpi_ds_clear_operands(walk_state);
@@ -722,6 +724,7 @@ acpi_status acpi_ds_exec_end_op(struct acpi_walk_state *walk_state)
cleanup:
if (walk_state->result_obj) {
+
/* Break to debugger to display result */
ACPI_DEBUGGER_EXEC(acpi_db_display_result_object
diff --git a/drivers/acpi/dispatcher/dswload.c b/drivers/acpi/dispatcher/dswload.c
index d3d24da31c81..02b03126e14e 100644
--- a/drivers/acpi/dispatcher/dswload.c
+++ b/drivers/acpi/dispatcher/dswload.c
@@ -261,6 +261,7 @@ acpi_ds_load1_begin_op(struct acpi_walk_state * walk_state,
*/
if (walk_state->deferred_node) {
+
/* This name is already in the namespace, get the node */
node = walk_state->deferred_node;
@@ -311,6 +312,7 @@ acpi_ds_load1_begin_op(struct acpi_walk_state * walk_state,
/* Common exit */
if (!op) {
+
/* Create a new op */
op = acpi_ps_alloc_op(walk_state->opcode);
@@ -413,6 +415,7 @@ acpi_status acpi_ds_load1_end_op(struct acpi_walk_state *walk_state)
#endif
if (op->common.aml_opcode == AML_NAME_OP) {
+
/* For Name opcode, get the object type from the argument */
if (op->common.value.arg) {
@@ -521,6 +524,7 @@ acpi_ds_load2_begin_op(struct acpi_walk_state *walk_state,
if ((walk_state->control_state) &&
(walk_state->control_state->common.state ==
ACPI_CONTROL_CONDITIONAL_EXECUTING)) {
+
/* We are executing a while loop outside of a method */
status = acpi_ds_exec_begin_op(walk_state, out_op);
@@ -554,10 +558,12 @@ acpi_ds_load2_begin_op(struct acpi_walk_state *walk_state,
/* Get the name we are going to enter or lookup in the namespace */
if (walk_state->opcode == AML_INT_NAMEPATH_OP) {
+
/* For Namepath op, get the path string */
buffer_ptr = op->common.value.string;
if (!buffer_ptr) {
+
/* No name, just exit */
return_ACPI_STATUS(AE_OK);
@@ -680,6 +686,7 @@ acpi_ds_load2_begin_op(struct acpi_walk_state *walk_state,
/* All other opcodes */
if (op && op->common.node) {
+
/* This op/node was previously entered into the namespace */
node = op->common.node;
@@ -705,6 +712,7 @@ acpi_ds_load2_begin_op(struct acpi_walk_state *walk_state,
* Note: Name may already exist if we are executing a deferred opcode.
*/
if (walk_state->deferred_node) {
+
/* This name is already in the namespace, get the node */
node = walk_state->deferred_node;
@@ -727,6 +735,7 @@ acpi_ds_load2_begin_op(struct acpi_walk_state *walk_state,
}
if (!op) {
+
/* Create a new op */
op = acpi_ps_alloc_op(walk_state->opcode);
diff --git a/drivers/acpi/dispatcher/dswscope.c b/drivers/acpi/dispatcher/dswscope.c
index ada21ef4a174..e2954fff8c5e 100644
--- a/drivers/acpi/dispatcher/dswscope.c
+++ b/drivers/acpi/dispatcher/dswscope.c
@@ -66,6 +66,7 @@ void acpi_ds_scope_stack_clear(struct acpi_walk_state *walk_state)
ACPI_FUNCTION_NAME("ds_scope_stack_clear");
while (walk_state->scope_info) {
+
/* Pop a scope off the stack */
scope_info = walk_state->scope_info;
@@ -105,6 +106,7 @@ acpi_ds_scope_stack_push(struct acpi_namespace_node *node,
ACPI_FUNCTION_TRACE("ds_scope_stack_push");
if (!node) {
+
/* Invalid scope */
ACPI_ERROR((AE_INFO, "Null scope parameter"));
diff --git a/drivers/acpi/dispatcher/dswstate.c b/drivers/acpi/dispatcher/dswstate.c
index fa78cb74ee36..5bc340b1b286 100644
--- a/drivers/acpi/dispatcher/dswstate.c
+++ b/drivers/acpi/dispatcher/dswstate.c
@@ -170,6 +170,7 @@ acpi_ds_result_pop(union acpi_operand_object ** object,
state->results.num_results--;
for (index = ACPI_OBJ_NUM_OPERANDS; index; index--) {
+
/* Check for a valid result object */
if (state->results.obj_desc[index - 1]) {
@@ -448,6 +449,7 @@ acpi_ds_obj_stack_pop(u32 pop_count, struct acpi_walk_state * walk_state)
ACPI_FUNCTION_NAME("ds_obj_stack_pop");
for (i = 0; i < pop_count; i++) {
+
/* Check for stack underflow */
if (walk_state->num_operands == 0) {
@@ -494,6 +496,7 @@ acpi_ds_obj_stack_pop_and_delete(u32 pop_count,
ACPI_FUNCTION_NAME("ds_obj_stack_pop_and_delete");
for (i = 0; i < pop_count; i++) {
+
/* Check for stack underflow */
if (walk_state->num_operands == 0) {
@@ -598,6 +601,7 @@ struct acpi_walk_state *acpi_ds_pop_walk_state(struct acpi_thread_state *thread)
walk_state = thread->walk_state_list;
if (walk_state) {
+
/* Next walk state becomes the current walk state */
thread->walk_state_list = walk_state->next;
@@ -778,6 +782,7 @@ acpi_ds_init_aml_walk(struct acpi_walk_state *walk_state,
}
if (parser_state->start_node) {
+
/* Push start scope on scope stack and make it current */
status =
generated by cgit v1.2.3 (git 2.0.4) at 2024-11-18 16:32:43 +0000